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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:165AB GHM

Order: 19

Horizontal side: 165 Vertical side: 165

Elements: 1√2, 15, 20, 15√2, 20√2, 30, 39, 40, 41, 42, 30√2, 39√2, 41√2, 42√2, 63, 82, 84, 62√2, 63√2.

Code: 632 63 102 624 62 103 410 124 165 411 165 165 206 63 104 405 83 84 821 165 124 16 62 103 205 63 84 633 63 39 305 63 54 304 93 54 843 123 0 422 165 42 155 63 39 154 78 39 423 165 0 395 0 0 394 39 0

The properties below may precede order:side in a tiling's title:

Credit for Discovery

Just three people are credited with the discovery of Primitive Perfects:

Geoffrey H. Morley (GHM, England)

Jasper D. Skinner, II (JDS, United States)

William T. Tutte (WTT, Canada, 1917-2002) (15:44AI, 17:136AJ and 19:56AJ only)

63√2
62√2
41√2
41
20√2
40
82
1√2
20
63
30
30√2
84
42√2
15
15√2
42
39
39√2